package cn.itcast.filter;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

public class FilterFactory
  implements Filter
{
  public void destroy() {}
  
  public void doFilter(ServletRequest arg0, ServletResponse arg1, FilterChain arg2)
    throws IOException, ServletException
  {
    HttpServletRequest request = (HttpServletRequest)arg0;
    
    arg2.doFilter(arg0, arg1);
  }
  
  public void init(FilterConfig filterConfig)
    throws ServletException
  {}
}
